Zsolt Miskolczi
Staff Software Engineer at Cloudera
Debrecen, Hungary
Summary
🤩
Rockstar🎓
Top SchoolZsolt Miskolczi is a Staff Software Engineer with nine years of professional experience specializing in backend development, databases, and query optimization, currently driving engineering at Cloudera after a long tenure at LogMeIn. He combines strong hands-on SQL and database design expertise with Agile practices to solve production-critical issues and improve system reliability. His open-source contributions to Apache Hive—fixing transaction-related NullPointerExceptions and hardening compaction behavior—highlight a focus on robustness in large-scale data processing. Based in Debrecen, Hungary, he brings a practical, test-driven approach to performance-sensitive systems and a track record of turning complex database problems into maintainable solutions.
9 years of coding experience
13 years of employment as a software developer
Debreceni Egyetem
Github Skills (10)
javas10
big-data10
apache-hive10
java10
testing10
databases9
sql-database9
database9
sql9
relational-databases9
Programming languages (9)
Github contributions (5)
apache/hive
Jul 2022 - Oct 2022
Apache Hive
Role in this project:
Back-end Developer & QA Engineer / Test Automation Engineer
Back-end Developer & QA Engineer / Test Automation EngineerContributions:241 reviews, 4 commits, 49 PRs in 2 months
Contributions summary:Zsolt primarily contributed to the Apache Hive project by addressing bugs and improving the robustness of the codebase. Their work involved fixing a `NullPointerException` in the `CompactionTxnHandler` class, a critical component for managing transactions and data compaction. They also worked on ensuring that statistics computation is skipped if compaction fails, enhancing the reliability of the data processing. Furthermore, they added a test to verify output directory names after partition compaction.
flinksqlapachebig-dataspark
InvisibleProgrammer/invisibleurl.net
Jun 2023 - Mar 2025
Contributions:4 PRs, 57 pushes, 4 branches in 1 year 9 months
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